radiator HONDA CIVIC 1991 Owners Manual

Speedometer

The speed is indicated in miles per hour (outside scale) and kilometers per hour (inside).

Odometer

The numbers on the odometer indicate miles.
The odometer registers total distance traveled, and serves as your guide for determining when periodic maintenance is due. Federal lawmakes it illegal to alter the odometer of any motor vehicle with the
intent to change the number of miles indicated.
Trip Meter The numbers on the trip meter indicate miles.
The trip meter can be returned to zero by pushing in the reset button. Use it for checking fuel consumption or distance traveled
per trip.

Tachometer (Si Hatchback and LX/EX Sedan) The tachometer indicates engine speed in revolutions per minute.
The beginning of the RED ZONE indicates the maximum allowableengine R.P.M. Do not run the engine with the tachometer indicator
needle in the RED ZONE.

Fuel Gauge
FUEL TANK CAPACITY: 45 (11.9 US gal ,9.9 Imp gal)
As a convenience, the gauge continues to show the same fuel level
as when the ignition was last on. After refueling, the gauge will
slowly change to the new fuel level when the ignition is switched on.
When the needle first indicates E (empty), you have a usable

reserve left in the tank of about:
4 (1.1 US gal, 0.9 Imp gal)
Coolant Temperature Gauge
CAUTION:
The needle should stay within the white range. If the needle reaches the red line at "H" (Hot), pull safely off the road, stop theengine and check the coolant level in the reserve tank on the
driver's side of the radiator under the hood.
Do not remove the radiator cap when the engine is hot. The
coolant is under pressure and may blow out and scald you.

GaugesProCarManuals.comMain Menu s t

Windshield Wipers/Washer/Defogger (cont'd)

CAUTION:
Do not use radiator antifreeze in the windshield washer; it will
damage the paint.
Do not use a vinegar/water combination in the windshield
washer; it will damage the pump. Prolonged operation of the washer without fluid may damage
the pump.
In freezing weather, warm the windshield with the defrosters
before using the washer. This will help prevent icing which could
seriously impair visibility.

Rear Window Wiper/Washer (DX/Si Hatchback)

Switch to "ON" to activate the rearwiper. Turn and hold the switch one more step clockwise to " "
to activate the washer and wiper; or turn and hold the switch one step
counterclockwise from "OFF" to
activate the washer only. The rear
washer uses the same fluid reser-

voir as the front washer.

Rear Window Defogger
Push the switch to turn the de-
fogger on or off. The indicator will light when the defogger is on.
The switch will turn off automat- ically 25 minutes after it is turned on.

CAUTION:

When cleaning the inside of the rear window, be careful not to
damage the printed heater wireson the rear window. Wipe the
window horizontally along the wires, not up and down.
INDICATOR

WIPER
WASHER

PushProCarManuals.comMain Menu s t

Check the following items at each fuel stop:

1. Engine oil level.

2. Radiator coolant level.
Check the following items periodically: 1. Brakes: for braking efficiency, brake pedal travel and hydraulic
fluid level.

2. Lights: for operation of headlights, taillights, side marker lights, stoplights, turn signals and back-up lights.
3. Tires: for correct pressures (including spare); inspect for cuts and uneven or excessive wear. Rotate every 7,500 miles (12,000 km)
in the pattern shown on page 97.
4. Steering: for excessive play or vibration while driving. 5. Exhaust system: for leaks or loose mounts.
6. Wipers: for operation of windshield wipers and washer, and condition of wiper blades.
7. Seat belts: for condition of fabric and buckles, and operation of the restraint mechanism.

8. Battery condition.

9. Clutch adjustment (clutch pedal free travel).

(cont'd)ProCarManuals.comMain Menu s t

Fluid Locations
AUTOMATIC TRANSMISSION
FLUID DIPSTICK ENGINE OILFILLER CAP
POWER STEERING
FLUID RESERVOIR
RADIATOR
CAP WASHER FLUID
RESERVOIR CAP
RADIATOR RESERVE
TANK CAP BRAKE FLUID
RESERVOIR
ENGINE OIL
DIPSTICKProCarManuals.comMain Menu s t

Cooling System
The engine in your Honda contains a number of aluminum parts. Therefore, it requires an antifreeze/coolant specifically formulated
to protect the aluminum parts from corrosion. Failure to use asuitable antifreeze/coolant may seriously shorten the life of the
engine as the result of rapid corrosion damage. Some antifreeze/
coolants, although labelled for use in engines containing aluminum,may not provide adequate protection for your engine.
Therefore, use only a Honda RECOMMENDED antifreeze/coolant.
CHECK WITH YOUR AUTHORIZED HONDA DEALER.

For best corrosion protection, the mixture of coolant and water
must be maintained year-round at 50/50. Concentrations less than 50% coolant may not provide sufficient protection against
corrosion and freezing. Concentrations of greater than 60% coolant
will impair cooling efficiency and are not recommended. Low- mineral drinking water or distilled water should be mixed with the
antifreeze/coolant. Coolant loss should be replenished by a mixture
containing the proper concentration of antifreeze and water.Do not mix different antifreeze/coolants.
Do not use additional rust inhibitors or anti-rust products, as they
may not be compatible with the radiator coolant.
ENGINE DAMAGE CAUSED BY IMPROPER COOLANT USAGE IS

NOT COVERED BY THE NEW CAR WARRANTY.

Checking Coolant
Check the coolant level in the reserve tank when the engine is at
normal operating temperature.
Do not remove the radiator cap when the engine is hot; the
coolant is under pressure and could severely scald you.ProCarManuals.comMain Menu s t

RESERVE TANKIf the level is below the MAX
mark, but still visible, add a 50/50
solution of antifreeze and water
to bring it up to MAX. If there is no coolant in the re-
serve tank, the cooling system should be checked for leaks and
repaired if necessary. Coolant

must then be added to the radi-

ator.

CAUTION:

Radiator coolant will damage paint. Quickly rinse any spilled
coolant from painted surfaces.
Wait until the engine is cool, then turn the radiator cap counterclock- wise until it stops. DO NOT PRESS DOWN WHILE TURNING THECAP. After any remaining pressure has been relieved, remove the
cap by pressing down and again turning it counterclockwise. Add
enough coolant to fill the radiator, and reinstall the cap. Be sure to
tighten it securely. Fill the reserve tank up to the MAX mark with
the engine cold.

Maintenance
1. Check the freeze protection level of the coolant with a hydrome- ter.
2. Keep the front of the radiator free of dirt and debris.
3. Check hoses and hose clamps regularly.
Replacing Coolant Replace coolant at 36 months or 45,000 miles (72,000 km), which-
ever comes first. Thereafter, replace every 2 years or 30,000 miles (48,000 km), whichever comes first.

(cont'd)

MAX
MIN

RADIATOR COOLANT

REFILL CAPACITY:
(excluding reserve tank) 0.4 (0.11 US gal, 0.09 Imp gal)
Manual transmission 4.0 (1.06 US gal ,0.88 Imp gal)

4.1 (1.08 US gal,0.90 Imp gal)*

Automatic transmission 4.0 (1.06 US gal,0.88 Imp gal)*
4.5 (1.19 US gal,0.99 Imp gal)

* : DX Hatchback and DX/LX Sedan
ProCarManuals.comMain Menu s t

Cooling System (cont'd)
1. Set the heater temperature control dial to maximum heat.
2. Remove the radiator cap, splash shield and drain plug when the radiator is cool, and drain the radiator.
3. Remove the drain bolt from the front side of the cylinder block,and drain the engine and heater.
4. Apply non-hardening sealant to the drain bolt threads, then rein-stall the bolt and tighten it se-

curely.

5. Tighten the radiator drain plug se-
curely.

6. Mix the recommended antifreeze with an equal amount of low-mineral or distilled water and fill
the reservoir to maximum, as illustrated.
7. Loosen the air bleed bolt in the thermostat housing, then fill the radiator to the filler neck with the coolant mixture. Tighten the
bleed bolt as soon as coolant starts to run out in a steady stream

without bubbles.

8. With the radiator cap off, start the engine and let it run until warmed up (fan goes on at least twice). Then, if necessary, addmore coolant mix to bring the level back up to the filler neck.
9. Put the radiator cap on, then run the engine again and check for
leaks.
RADIATOR

CAP

BLEED BOLT

DRAIN BOLT
DRAIN PLUG
Fill to

here
FILLER
NECK
Fill to here

MAXProCarManuals.comMain Menu s t

Air Conditioner Care

Condenser and Radiator
Check the engine radiator and the air conditioner condenser (in front
of the radiator) for accumulated dirt, insects or leaves. Carefully brush or hose them off to assure maximum cooling performance.
CAUTION:
Radiator and condenser fins are very thin and easily damaged; do
not bend them with the high water pressure or brush.
Compressor Drive Belt
Check the compressor belt tension monthly, during periods when
you use the air conditioner a lot.

If the engine has been running, some engine components may be

hot enough to burn you.

When pushed with 98 N (22 Ib) of force midway between thecompressor drive pulley and the engine crankshaft pulley, the belt
should deflect about:
9.0 — 11.0 mm (0.35 — 0.43 in)

CRANKSHAFTPULLEY

COMPRESSOR DRIVE PULLEYProCarManuals.comMain Menu s t

Index

Battery
Charging System Warning Light.............................................. 30
Jump Starting ........................ 110
Maintenance............................. 89
Specification (Hatchback).... 116
Specification (Sedan)............ 119
Beeper System Fasten Seat Belt Beeper(Sedan).................................. 11

(Hatcback)............................ 15

Belts, Seat............. See "Seat Belts"
Body Repair.................................. 102
Brake Warning Light...................... 31 Brakes
Brake Failure Warning Light.... 31

Brake Fluid................................ 84

Brake System Design.............. 83
Brake Wear Indicators............. 84
Parking Brake........................... 42
Parking Brake Warning Light.. 31
Break-in Period................................. 2

Bulb
Replacement............................
92

Specification (Hatchback)....
117
Specification (Sedan)............

120
Buzzer........... See
"Beeper System"
Capacities (Hatchback)............... 115 Capacities (Sedan)....................... 118
Care and Cleaning.......................... 99
Catalytic Converter..................... 126 Certification Label....................... 121
Chains, Tires...................................

95
Check Engine
Warning Light......... 31
Child Proof Door Locks...................

5

Child Restraint
System................. 21
Cigarette Lighter............................ 44

Clock............................................... 42
Clutch Pedal Adjustment.............. 61
Compact Spare Tire.................... 104
Coolant Temperature Gauge ........

28
Cooling (with
A/C).........................

49

Cooling System..............................

80

Crankcase Emission Control
System................................... 124
Cruise Control Operation.................................. 39
Indicator.................................... 31

Defogger........................................ 34
Defroster........................................ 51

Doors
Child Proof Door Locks............. 5

Locks........................................... 3

Power Locks.............................. 4

Emergency
Changing a Flat Tire............... 105
Hazard Warning System ......... 37If Your Car Gets Stuck.......... 112
Jump Starting........................ 110

Shoulder Belt Buckle............. 113

Towing.................................... 111
Warning and Indicator Lights.. 29
Emission Controls........................ 124

Engine
Coolant...................................... 80

Coolant Temperature Gauge... 28
Exhaust Controls................... 125Identification Number............ 12

1
Oil and
Filter.............................. 76
OH Pressure Warning Light..... 30
Specification (Hatchback).... 116
Air Conditioner
Operation.................................. 47

Service...................................... 98

Air Filter.......................................... 86

Air Pressure, Tires......................... 94
Antifreeze.. See "Radiator Coolant" Anti-theft Steering Column Lock System ..................................... 57
Appearance Care........................ 100

Ashtrays......................................... 44

Automatic Seat Belt...................... 10

Automatic Transmission
Driving Technique.................... 66

Fluid........................................... 79

Operation.................................. 64

(cont'd)ProCarManuals.comMain Menu s t

Maintenance
Non-Scheduled MaintenanceRecord................................... 72
Scheduled Maintenance Record................................... 71

Schedule................................... 68

Severe Driving Conditions...... 72
Manual Transmission Clutch Pedal Adjustment........ 61
Maximum Allowable Speeds.. 63
Oil...............................................
78

Recommended Shift
Speeds.. 62

Shifting......................................

61

Meters, Gauges..........
See "Gauges"
Mirrors Power Mirrors.......................... 35

Rearview Mirrors..................... 35

Octane Rating, Gasoline. See "Fuel"
Odometer........................................ 28
Oil
Engine Oil.................................. 75

Fluid Locations......................... 74
Oil Pressure Warning Light..... 30
Power Steering Fluid................ 85
Transmission Oil/Fluid.............. 78
Operation In Foreign Countries..... 55
Panel Brightness Control............... 37
Parking Brake................................. 42
Passive Belt.................................... 10
PGM-FI
System.................................... 125
Power Door Locks................................. 4
Mirrors...................................... 35
Steering..................................... 85

Windows.................................. 43

Pregnant Women........................... 25
Pressures, Tire Inflation................ 94
Preventive Service...................... 102 Radiator Coolant............................ 80

Rear Seat.......................................... 8

Rearview Mirrors........................... 35
Rear Window Defogger................ 34Rear Window Wiper...................... 34Reminder Lights .................. See "Warning Lights"
Replacement
Air Filter.................................... 86

Bulb............................................ 92
Engine Oil.................................. 76

Fuel Filter.................................. 86

Fuse...........................................90
Oil Filter..................................... 76
Radiator Coolant...................... 82
Spark Plugs............................... 87

Tire............................................ 94
Wiper Blades............................. 88
Rust Prevention........................... 101
Safety Defects, Reporting.......... 128

Safety Items................................... 59

Seats
Adjustment................................. 6
Head Restraints.......................... 7
Seat Belt Reminder Light
and Beeper (Sedan).................. 14

Seat Belt Reminder Light and Beeper (Hatchback).......... 17
Seat Belts Anchor Points (Hatchback)..... 22
Anchor Points (Sedan)............ 24

Automatic Belt......................... 10

Buckling the Front Seat Belts (Sedan)............... 11
Buckling the Front Seat Belts (Hatchback)....... 15
Buckling the Rear Seat Belts .. 19
Child Restraint.......................... 21
Cleaning..................................... 25

Fasten Seat Belt Reminder Light and Beeper (Sedan).............. 14
Fasten Seat Belt Reminder Light and Beeper (Hatchback)...... 17

(cont'd)

Numbers, Identification............... 121ProCarManuals.comMain Menu s t